This is a fairly major update to change the document from dtls-connection to dtls-association-id.
This modifies handling of the 'setup' attribute to either be set to 'actpass' for offers establishing new DTLS associations or be set to currently negotiated role (this is based on the comments from the last face-to-face).
Clarifies ICE and transport considerations.
Clarifies multiple fingerprint handling
Removes Old/New text for RFC changes and lists only new text with update summary.
This is a fairly major update to change the document from dtls-connection to dtls-association-id.